Band-saw.



No. 642,830. Patente d Feb. 6, I900.

F. ZEINWOLDT. BAND-SAW.

'(Aiaplieation filed. my 13, 1898.) {No Model.)

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NITED STATES PATENT OFFICE.

FRANS ZEINWOLDT, OF BODAFORS, SANDSJO, SWEDEN.

BAND-SAW.

SPECIFICATION forming part of Letters Patent No. 642,830, dated February 6, 1900.

Application filed May 13, 1898. Serial No. 680,587- (No model.) I

To (all whom it may concern:

Be it known that I, FRANS ZEINWOLDT, a subject of the King of Sweden and Norway, and a resident of Bodafors, Sandsjo, Sweden, have invented a new and useful Improvement in Band-Saws, of which the following is a,

specification, reference being had to the drawing accompanying and forming a part of the same.

This invention refers to improvements in band-saws.

The band-saws hitherto constructed have the disadvantage of being shaky on account of the heaviness of the upper part.

The object of this invention is to do away with the said disadvantage, and also to get rid of the spring or rubber buffer necessary in the present band-saws.

The invention consists in providing a light and at the same time elastic bow or frame for carrying the saw-driving Wheels. The bow or frame is made out of strips of wood placed together sidewise one behind another.

The accompanying drawing shows a side View of a band-saw constructed. according to this invention.

(1 represents the bow or frame, carrying the saw-driving wheels b and the bearings d for the same. Said bow is made of strips of wood e e, bent sidewise to the proper shape and laid together one outside the other, as shown in the drawing, and fastened together by any suitable means, such as rivets, glue, or the like. Since it is the lower Wheel that draws the saw and the purpose of the upper wheel only is to keep straight that part of the saw that is above the wood that is to be sawed, a band-saw constructed in the aforesaid manner will be steady enough. At the same time balances or buffers are unnecessary, the bow being elastic enough to keep the saw-blade straight.

Having now described my invention, what I claim, and desire to secure by Letters Patent, is-

In aband-saw machine, an elastic frame or bow in the shape of a C built of parallel strips of wood carrying a band-saw wheel on each arm, substantially as set forth.

In Witness whereof I have hereunto set my hand in presence of two Witnesses.

FRANS ZEINWOLDT.

Witnesses:

H. MINGGUIST, O. ERLANDSON. 

